2543522487 has 24 divisors (see below), whose sum is σ = 3828465648. Its totient is φ = 1499857920.

The previous prime is 2543522477. The next prime is 2543522557. The reversal of 2543522487 is 7842253452.

It is not a de Polignac number, because 2543522487 - 2¹¹ = 2543520439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543522437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81258 + ... + 108119.

It is an arithmetic number, because the mean of its divisors is an integer number (159519402).

Almost surely, 2^2543522487 is an apocalyptic number.

2543522487 is a deficient number, since it is larger than the sum of its proper divisors (1284943161).

2543522487 is a wasteful number, since it uses less digits than its factorization.

2543522487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189439 (or 189428 counting only the distinct ones).

The product of its digits is 537600, while the sum is 42.

The square root of 2543522487 is about 50433.3469740012. The cubic root of 2543522487 is about 1365.0394219048.

The spelling of 2543522487 in words is "two billion, five hundred forty-three million, five hundred twenty-two thousand, four hundred eighty-seven".